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Bill Gates and Warren Buffett want to build a new kind of nuclear reactor to generate electricity. Why? Because the wind doesn’t always blow and the sun doesn’t always shine. They intend to plunk their new toy down in the state of Wyoming on the former site of a coal-fired generating plant.

“This is our fastest and clearest course to becoming carbon negative,” says Wyoming’s governor Mark Gordon. “Nuclear power is clearly a part of my all-of-the-above strategy for energy.” Wyoming is the top coal producing state in America.

According to The Guardian, the new facility will be a joint venture between TerraPower, founded by Gates 15 years ago, and PacifiCorp, a Berkshire Hathaway-owned utility that serves customers in Wyoming, Idaho, Utah, California, Oregon, and Washington.

Small advanced reactors, which run on different fuels than traditional reactors, are regarded by some as a critical carbon-free technology that can supplement intermittent power sources like wind and solar as states strive to cut emissions that cause climate change. “We think Natrium will be a game-changer for the energy industry,” Gates told a media conference in Cheyenne, Wyoming this week.

PacifiCorp service area. Image credit: SEC

345 Megawatts

The Guardian says the new generating station will produce 345 megawatts of electricity, but the output can be boosted by a molten salt energy storage component to 500 megawatts. The primary feature of the so-called Natrium technology is that it uses sodium to cool the reactor instead of water. Natrium is the Latin word for sodium, which is why its symbol on the periodic table of elements is Na.

Chris Levesque, TerraPower CEO, told the press this week the demonstration plant will cost about $1 billion and will take about seven years to build. “We need this kind of clean energy on the grid in the 2030s,” he told reporters. Actually, Chris, we need clean energy on the grid now, not 7+ years from now. A billion dollars would buy more than 500 MW of power and have it online, together with grid storage batteries, in a lot less time. Why wait?

Natrium Technology

I am not a nuclear engineer nor am I a rocket scientist, so I have to rely on Wikipedia to inform me about some things (I contribute $5 a month to support Wikipedia and encourage you to do the same).

Here is what I found out:

Image credit: Wikimedia/Public Domain

Advantages

The primary advantage of liquid metal coolants, such as liquid sodium, is that metal atoms are weak neutron moderators. Water is a much stronger neutron moderator because the hydrogen atoms found in water are much lighter than metal atoms, and therefore neutrons lose more energy in collisions with hydrogen atoms.

This makes it difficult to use water as a coolant for a fast reactor because the water tends to slow (moderate) the fast neutrons into thermal neutrons (though concepts for reduced moderation water reactors exist).

Another advantage of liquid sodium coolant is that sodium melts at 371K and boils / vaporizes at 1156K, a total temperature range of 785K between solid / frozen and gas / vapor states. By comparison, the liquid temperature range of water (between ice and gas) is just 100K at normal, sea-level atmospheric pressure conditions. Despite sodium’s low specific heat (as compared to water), this enables the absorption of significant heat in the liquid phase, even allowing for safety margins. Moreover, the high thermal conductivity of sodium effectively creates a reservoir of heat capacity which provides thermal inertia against overheating.

Sodium also need not be pressurized since its boiling point is much higher than the reactor’s operating temperature, and sodium does not corrode steel reactor parts.[2] The high temperatures reached by the coolant (the Phénix reactor outlet temperature was 560° C) permit a higher thermodynamic efficiency than in water-cooled reactors. The molten sodium, being electrically conductive, can also be pumped by electromagnetic pumps.

Disadvantages

A disadvantage of sodium is its chemical reactivity, which requires special precautions to prevent and suppress fires. If sodium comes into contact with water it reacts to produce sodium hydroxide and hydrogen, and the hydrogen burns when in contact with air.

This was the case at the Monju Nuclear Power Plant in a 1995 accident. In addition, neutron capture causes it to become radioactive; however, activated sodium has a half-life of only 15 hours. Another problem is sodium leaks which are regarded by a critic of fast reactors, M.V. Ramana, as “pretty much impossible to prevent.”

Fuel Used

Wikipedia adds that a natrium facility that generates less than 500 MW of electricity uses “uranium-plutonium-minor-actinide-zirconium metal alloy fuel, which is supported by a fuel cycle based on pyrometallurgical reprocessing in facilities integrated with the reactor.” I don’t know about you, but the words “uranium” and “plutonium” don’t sound like “different fuels compared to traditional nuclear reactors.”

The Guardian points out that nuclear power experts have warned that advanced reactors could have higher risks than conventional ones. Fuel for many advanced reactors would have to be enriched at a much higher rate than conventional fuel, meaning the fuel supply chain could be an attractive target for militants looking to create a crude nuclear weapon. And don’t even be concerned about Russian hackers. We know those malefactors only like to interrupt gasoline pipelines and beef processing plants. Pooty Poot and his henchmen would never stoop so low as to hack a nuclear power plant…would they?

People always rush to criticize Tesla for selling emissions credits, but no one wants to talk about the $80 million the US Department of Energy has already invested in TerraPower with millions more coming in the future. No one would expect Bill Gates and Warren Buffett — two of the richest white men in history — to foot the bill for their boondoggles all by themselves, would they?

All Of The Above

The key to understanding this story is found in Governor Gordon’s use of the words “all of the above.” That’s free market speak for “We’re happy to have a piddly little 350 MW facility of over here, just so long as we can continue supporting coal- and gas-powered generating plants that churn out hundreds of gigawatts over there.” In other words, it’s a smokescreen designed to allow fossil fuel interests to kick the can down the road a little further and add some greenwashing to their corporate portfolios at the same time.

Being rich does not necessarily make a person all that smart. America needs more nuclear power like a fish needs a bicycle. People in Wyoming may be fooled by this blather, but CleanTechnica readers aren’t taking the bait. Natrium was probably selected as the name of thus new nuclear technology because it sounds a little like “nature” or “natural.” That’s a great marketing ploy, but we’re not buying it. Frankly, the Bill and Warren show is more than a little disappointing.


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Tesla, Trump alliance falls apart – but there’s BIG news for electric semi fleets

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Tesla, Trump alliance falls apart – but there's BIG news for electric semi fleets

After a month off trying to wrap our heads around all the chaos surrounding EVs, solar, and everything else in Washington, we’re back with the biggest EV news stories of the day from Tesla, Ford, Volvo, and everyone else on today’s hiatus-busting episode of Quick Charge!

It just gets worse and worse for the Tesla true believers – especially those willing to put their money where Elon’s mouth is! One believer is set to lose nearly $50,000 betting on Tesla’s ability to deliver a Robotaxi service by the end of June (didn’t happen), and the controversial CEO’s most recent spat with President Trump had TSLA down nearly 5% in pre-morning trading.

Prefer listening to your podcasts? Audio-only versions of Quick Charge are now available on Apple PodcastsSpotifyTuneIn, and our RSS feed for Overcast and other podcast players.

New episodes of Quick Charge are recorded, usually, Monday through Thursday (and sometimes Sunday). We’ll be posting bonus audio content from time to time as well, so be sure to follow and subscribe so you don’t miss a minute of Electrek’s high-voltage daily news.

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Got news? Let us know!
Drop us a line at tips@electrek.co. You can also rate us on Apple Podcasts and Spotify, or recommend us in Overcast to help more people discover the show.


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Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

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Hyundai is about to reveal a new EV and it could be the affordable IONIQ 2

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Hyundai is about to reveal a new EV and it could be the affordable IONIQ 2

Hyundai is getting ready to shake things up. A new electric crossover SUV, likely the Hyundai IONIQ 2, is set to debut in the coming months. It will sit below the Kona Electric as Hyundai expands its entry-level EV lineup.

Is Hyundai launching the IONIQ 2 in 2026?

After launching the Inster late last year, Hyundai is already preparing to introduce a new entry-level EV in Europe.

Xavier Martinet, President and CEO of Hyundai Europe, confirmed that the new EV will be revealed “in the next few months.” It will be built in Europe and scheduled to go on sale in mid-2026.

Hyundai’s new electric crossover is expected to be a twin to the Kia EV2, which will likely arrive just ahead of it next year.

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It will be underpinned by the same E-GMP platform, which powers all IONIQ and Kia EV models (EV3, EV4, EV5, EV6, and EV9).

Like the Kia EV3, it will likely be available with either a 58.3 kWh or 81.4 kWh battery pack option. The former provides a WLTP range of 267 miles while the latter is rated with up to 372 miles. All trims are powered by a single electric motor at the front, producing 201 hp and 209 lb-ft of torque.

Kia-EV2
Kia EV2 Concept (Source: Kia)

Although it may share the same underpinnings as the EV2, Hyundai’s new entry-level EV will feature an advanced new software and infotainment system.

According to Autocar, the interior will represent a “step change” in terms of usability and features. The new system enables new functions, such as ambient lighting and sounds that adjust depending on the drive mode.

Hyundai-IONIQ-2-EV
Hyundai E&E tech platform powered by Pleos (Source: Hyundai)

It’s expected to showcase Hyundai’s powerful new Pleos software and infotainment system. As an end-to-end software platform, Pleos connects everything from the infotainment system (Pleos Connect) to the Vehicle Operating System (OS) and the cloud.

Pleos is set to power Hyundai’s upcoming software-defined vehicles (SDVs) with new features like autonomous driving and real-time data analysis.

Hyundai-new-Pleos-OS
Hyundai’s next-gen infotainment system powered by Pleos (Source: Hyundai)

As an Android-based system, Pleos Connect features a “smartphone-like UI” with new functions including multi-window viewing and an AI voice assistant.

The new electric crossover is expected to start at around €30,000 ($35,400), or slightly less than the Kia EV3, priced from €35,990 ($42,500). It will sit between the Inster and Kona Electric in Hyundai’s lineup.

Hyundai said that it would launch the first EV with its next-gen infotainment system in Q2 2026. Will it be the IONIQ 2? Hyundai is expected to unveil the new entry-level EV at IAA Mobility in September. Stay tuned for more info. We’ll keep you updated with the latest.

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Tesla unveils its LFP battery factory, claims it’s almost ready

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Tesla unveils its LFP battery factory, claims it's almost ready

Tesla has unveiled its lithium-iron-phosphate (LFP) battery cell factory in Nevada and claims that it is nearly ready to start production.

Like several other automakers using LFP cells, Tesla relies heavily on Chinese manufacturers for its battery cell supply.

Tesla’s cheapest electric vehicles all utilize LFP cells, and its entire range of energy storage products, Megapacks and Powerwalls, also employ the more affordable LFP cell chemistry from Chinese manufacturers.

This reliance on Chinese manufacturers is less than ideal and particularly complicated for US automakers and battery pack manufacturers like Tesla, amid an ongoing trade war between the US and virtually the entire world, including China.

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As of last year, a 25% tariff already applied to battery cells from China, but this increased to more than 80% under Trump before he paused some tariffs on China. It remains unclear where they will end up by the time negotiations are complete and the trade war is resolved, but many expect it to be higher.

Prior to Trump taking power, Tesla had already planned to build a small LFP battery factory in the US to avoid the 25% tariffs.

The automaker had secured older manufacturing equipment from one of its battery cell suppliers, CATL, and planned to deploy it in the US for small-scale production.

Tesla has now released new images of the factory in Nevada and claimed that it is “nearing completion”:

Here are a few images from inside the factory (via Tesla):

Previous reporting stated that Tesla aims to produce about 10 GWh of LFP battery cells per year at the new factory.

The cells are expected to be used in Tesla’s Megapack, produced in the US. Tesla currently has a capacity to produce 40 GWh of Megapacks annually at its factory in California. The company is also working on a new Megapack factory in Texas.

Ford is also developing its own LFP battery cell factory in Michigan, but this facility is significantly larger, with a planned production capacity of 35 GWh.

Electrek’s Take

It’s nice to see this in the US. LFP was a US/Canada invention, with Arumugam Manthiram and John B. Goodenough doing much of the early work, and researchers in Quebec making several contributions to help with commercialization.

But China saw the potential early and invested heavily in volume manufacturing of LFP cells and it now dominates the market.

Tesla is now producing most of its vehicles with LFP cells and all its stationary energy storage products.

It makes sense to invest in your own production. However, Tesla is unlikely to catch up to BYD and CATL, which dominate LFP cell production.

The move will help Tesla avoid tariffs on a small percentage of its Megapacks produced in the US. Ford’s effort is more ambitious.

It’s worth noting that both Ford’s and Tesla’s LFP plants were planned before Trump’s tariffs, which have had limited success in bringing manufacturing back to the US.

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